Employing the utility of the native chemical ligation, site-specific attachment of an ultrastable perylene dye to a derivative of the major light-harvesting complex (LHCII) was demonstrated. Biochemical analysis of the conjugate indicated that the structure and function of LHCII remain largely unaffected by the N-terminal modification.

We present here the first room-temperature 2D electronic spectroscopy study of energy transfer in the plant light-harvesting complex II, LHCII. Two-dimensional electronic spectroscopy has been used to study energy transfer dynamics in LHCII trimers from the chlorophyll b Qy band to the chlorophyll a Qy band. Observing cross-peak regions corresponding to couplings between different excitonic sta...

The ability to dissipate large fractions of their absorbed light energy as heat is a vital photoprotective function of the peripheral light-harvesting pigment-protein complexes in photosystem II of plants. The major component of this process, known as qE, is characterised by the appearance of low-energy (red-shifted) absorption and fluorescence bands. Although the appearance of these red states...

Wireless sensor networks (WSNs) play an increasingly important role in monitoring applications in many areas. With the emergence of the Internet-of-Things (IoT), many more lowpower sensors will need to be deployed in various environments to collect and monitor data about environmental factors in real time. Providing power supply to these sensor nodes becomes a critical challenge for realization...

Light harvesting as the first step in photosynthesis is of prime importance for life on earth. For a theoretical description photochemical processes during light harvesting, spectral densities are key quantities. They serve input functions modeling excitation energy transfer dynamics and spectroscopic properties. Herein, recently developed procedure applied to determine pigments minor antenna c...

aflatoxin b1 (afb1) is a secondary metabolite produced by some aspergillus species, which haveharmful impacts on human health such as carcinogenicity, teratogenicity, acute and chronic toxicity.in this study, the occurrence of afb1 in pistachio nuts during various preparing processes wasinvestigated in two pistachio farms from qazvin province, iran, from september to november 2012.high performa...

The seeds of three Eucalyptus species (Myrtaceae) (Origin: Australia), including:, Eucalyptus loxophleba Benth., Eucalyptus microtheca F.Muell.  and Eucalyptus largiflorens F.Muell. were cultivated in 1993-1994 at two research stations (Shushtar and Dezful) in Khuzistan province (western south region of Iran) and a research station (Kashan) in Isfahan province (Central region of Iran). These sp...